[tex]1 - 7 \times 7 = - 48[/tex]
[tex]125 + 8 \times 25 - 9 \times 5 = \\ 125 + 200 - 45 \\ 325 - 45 \\ 280[/tex]
[tex]5 \times {23}^{2} - {23}^{2} \times 4 = \\ 5 \times 4 \\ 20[/tex]
[tex]1 + 2017 \times 0 + 2017 \times 32 \\ 1 + 2017 \times 32 \\ 64.645[/tex]
